I've created a separate writing category for Tokyo Inferno, this year's NaNoWriMo project, and appropriately updated the pinned messages in each section.
What I may do this year is file excerpts from the ongoing NaNo on a daily basis — nothing major, just little teasers here and there to keep people curious. They will probably be enormously different from the finished product, mind you, but I love teasers regardless.
I'm also in the process of straightening up the way the archives are organized, especially the categories, which are still a little messy and have a bit too much of the stock Movable Type feel to them. I've also been making aggressive use of SSIs and other mechanisms to minimize the amount of rebuilding that needs to be done. (I toyed with the idea of using dynamic pages a la WordPress, but for now I'd like to see how far a static page mode can carry me.)